* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.side-bar {
  position: relative;
  width: 100%;
  float: none;
}
.main {
  width: 100%;
  padding: 0 10px;
  }
.article-list {
  margin: 0;
  }
 .side-bar .nav,
 .side-bar .tag-list {
   display: none;
   text-align: center;
 }

#menu-checkbox:checked ~ .nav,
#menu-checkbox:checked ~ .tag-list {
  display: block;
}
#menu-toggle {
  display: block;
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 18px;
  font-weight: 100;
  color: rgb(180, 180, 180);
}
